Method and arrangement for managing packet data transfer in a cellular system
DC CAFC
First Claim
1. A method for transferring packet data in the uplink direction from a mobile station to a system in such a manner that:
- a common channel (RACH) or a dedicated channel (DCH) is selected for the sending of a data packet, andthe data packet is sent using the channel selected, characterized in thata threshold value of a channel selection parameter is defined (620)said threshold value of the channel selection parameter is sent to the mobile station (630),a current value of the channel selection parameter is compared to said threshold value of the channel selection parameter by the mobile station (650), andsaid selection is performed on the basis of said comparison (660).
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Abstract
A method and an arrangement for managing packet data transfer in a cellular system such as the Universal Mobile Telecommunications System, UMTS. The decision about the channel used for the transfer of packet data is made based on a channel selection parameter and values of the parameters needed in the decision-making are sent to the mobile station. The parameters are advantageously sent on a common channel such as the BCH or FACH. Parameters sent advantageously include the maximum packet size on the RACH, current RACH load, a threshold value for amount of data in RLC buffers, etc. The parameters may concern all mobile stations, a subset of the mobile stations or one mobile station in the area in which the parameters are sent. The invention minimizes the transfer capacity load associated with signaling and the transfer of packet data can be performed with minimal delays caused by signaling.
72 Citations
21 Claims
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1. A method for transferring packet data in the uplink direction from a mobile station to a system in such a manner that:
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a common channel (RACH) or a dedicated channel (DCH) is selected for the sending of a data packet, and the data packet is sent using the channel selected, characterized in that a threshold value of a channel selection parameter is defined (620) said threshold value of the channel selection parameter is sent to the mobile station (630), a current value of the channel selection parameter is compared to said threshold value of the channel selection parameter by the mobile station (650), and said selection is performed on the basis of said comparison (660). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A cellular system comprising:
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means for sending packet data in the uplink direction from a mobile station to the system using a selected channel, means for selecting a common channel (RACH) or a dedicated channel (DCH) for the sending of a data packet, characterized in that it also comprises; means for defining a threshold value of a channel selection parameter, means for sending said threshold value of the channel selection parameter from the system to the mobile station in order to compare said threshold value of the channel selection parameter to a current value of the channel selection parameter, and means for making said channel selection on the basis of said comparison. - View Dependent Claims (16)
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17. A mobile station connected with a cellular system, comprising means for sending uplink packet data to the system using a selected channel, wherein the selected channel is either a common channel (RACH) or a dedicated channel (DCH), characterized in that it also comprises:
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means for receiving a threshold value of a channel selection parameter from the system, means for storing said threshold value of the channel selection parameter, and means for comparing said threshold value of the channel selection parameter to a current value of the channel selection parameter for basis of said channel selection. - View Dependent Claims (18, 19, 20, 21)
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Specification
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Current AssigneeConversant Wireless Licensing S.à.r.l. (f/k/a Core Wireless Licensing S.a.r.l.) (MOSAID Technologies Inc. (f/k/a Conversant Intellectual Property Management))
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Original AssigneeNokia Mobile Phones UK Limited (Nokia Corporation)
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InventorsVialen, Jukka
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Primary Examiner(s)Corsaro, Nick
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Application NumberUS09/507,804Time in Patent Office2,128 DaysField of Search370/349, 370/329, 370/333, 370/352, 455/455, 455/450, 455/466, 455/452.2US Class Current455/452.2CPC Class CodesH04W 28/18 Negotiating wireless commun...
